Aarts, Gert and Allton, Chris and De Boni, Davide and Hands, Simon and Jager, Benjamin and Praki, Chrisanthi and Skullerud, Jon-Ivar (2018) Baryons in the plasma: in-medium effects and parity doubling. EPJ Web of Conferences, 171 (14005). ISSN 2100-014X

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Abstract

We investigate the fate of baryons made out of u, d and s quarks in the hadronic gas and the quark-gluon plasma, using nonperturbative lattice simulations, employing the FASTSUM anisotropic Nf = 2+1 ensembles. In the confined phase a strong temperature dependence is seen in the masses of the negative-parity groundstates, while the positiveparity groundstate masses are approximately temperature independent, within the error. At high temperature parity doubling emerges. A noticeable effect of the heavier s quark is seen. We give a simple description of the medium-dependent masses for the negativeparity states and speculate on the relevance for heavy-ion phenomenology via the hadron resonance gas.

Item Type:	Article
Additional Information:	© The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). Presented at Strangeness in Quark Matter, Utrecht, the Netherlands, 10-15 July 2017
Keywords:	Baryons; plasma; in-medium effects; parity doubling; nonperturbative lattice simulations;
Academic Unit:	Faculty of Science and Engineering > Theoretical Physics
Item ID:	13326
Identification Number:	https://doi.org/10.1051/epjconf/201817114005
Depositing User:	Dr. Jonivar Skullerud
Date Deposited:	30 Sep 2020 14:06
Journal or Publication Title:	EPJ Web of Conferences
Publisher:	EDP Sciences
Refereed:	Yes
URI:	Publisher
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

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